/**
 ******************************************************************************
 *
 * @file       uavobjectmanager.h
 * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
 * @see        The GNU Public License (GPL) Version 3
 * @addtogroup GCSPlugins GCS Plugins
 * @{
 * @addtogroup UAVObjectsPlugin UAVObjects Plugin
 * @{
 * @brief      The UAVUObjects GCS plugin
 *****************************************************************************/
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
#ifndef UAVOBJECTMANAGER_H
#define UAVOBJECTMANAGER_H

#include "uavobjects_global.h"
#include "uavobject.h"
#include "uavdataobject.h"
#include "uavmetaobject.h"
#include <QList>
#include <QMutex>
#include <QMutexLocker>
#include <QJsonObject>

class UAVOBJECTS_EXPORT UAVObjectManager : public QObject {
    Q_OBJECT

public:
    enum JSON_EXPORT_OPTION { JSON_EXPORT_ALL, JSON_EXPORT_METADATA, JSON_EXPORT_SETTINGS, JSON_EXPORT_DATA };
    UAVObjectManager();
    ~UAVObjectManager();

    bool registerObject(UAVDataObject *obj);
    QList< QList<UAVObject *> > getObjects();
    QList< QList<UAVDataObject *> > getDataObjects();
    QList< QList<UAVMetaObject *> > getMetaObjects();
    UAVObject *getObject(const QString & name, quint32 instId = 0);
    UAVObject *getObject(quint32 objId, quint32 instId = 0);
    QList<UAVObject *> getObjectInstances(const QString & name);
    QList<UAVObject *> getObjectInstances(quint32 objId);
    qint32 getNumInstances(const QString & name);
    qint32 getNumInstances(quint32 objId);

    void toJson(QJsonObject &jsonObject, JSON_EXPORT_OPTION what = JSON_EXPORT_ALL);
    void toJson(QJsonObject &jsonObject, const QList<QString> &objectsToExport);
    void toJson(QJsonObject &jsonObject, const QList<UAVObject *> &objectsToExport);
    void fromJson(const QJsonObject &jsonObject, QList<UAVObject *> *updatedObjects = NULL);

signals:
    void newObject(UAVObject *obj);
    void newInstance(UAVObject *obj);

private:
    static const quint32 MAX_INSTANCES = 1000;

    QList< QList<UAVObject *> > objects;
    QMutex *mutex;

    void addObject(UAVObject *obj);
    UAVObject *getObject(const QString *name, quint32 objId, quint32 instId);
    QList<UAVObject *> getObjectInstances(const QString *name, quint32 objId);
    qint32 getNumInstances(const QString *name, quint32 objId);
};


#endif // UAVOBJECTMANAGER_H
